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Owner:  Orange County Public Works
Location:  Westminster, CA
Value:  $7.8 Million
Year:  2010 – 2011

The project includes construction of a 330LF rib & lag tunnel containing a 72″ x 113″ elliptical reinforced concrete pipe under the I-405 freeway, replacement of 2,700LF of existing trapezoidal channel with a larger capacity 20′ wide reinforced concrete ‘U’ channel.

Additional work consists of replacement of an existing 63″ reinforced concrete pipe under the Edinger Ave/I-405 overcrossing approach ramp with a cast-in-place double barrel 9′ x 9′ reinforced concrete box by open cut excavation.

The Edinger Storm Channel Project was awarded the 2015 Flood Management Project of the Year by the American Society of Civil Engineers Orange County Branch.

Corporate Office

200 North Sherman Ave.
Corona, CA 92882
P: (951) 734-3010 | F: (951) 735-2041

Project Offices

Edinger Storm Channel
Westminster, CA
P: (951)734-3010 | F: (951) 735-2041